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Tallyloom: Free Online Calculators, Converters & Generators

Everyday tools, woven into one place — fast, private, no sign-up, and without the clutter.

Password Generator Unit Converter Invoice Generator Timezone Converter Currency Converter QR Code Generator

Browse by what you need done

Money & Finance

tallyloom.com/money/

Plan payments, payoff, and retirement with calculators that show their work.

Mortgage Amortization Loan Payoff Debt Snowball Compound Interest Retirement Calculator Budget Auto Loan Tip Sales Tax Discount Hourly to Salary

Open Money →

Converters & Time

tallyloom.com/convert/

Units, currencies, timezones, cooking measures, and dates — converted instantly.

Units Currency Timezones Cooking Measures Age & Dates Countdown File Size Business Days Time Duration Week Number Military Time

Open Convert →

Documents & Career

tallyloom.com/generate/

Make polished invoices, resumes, and codes in minutes — free, with no watermarks.

Invoices Resume Builder Cover Letters Receipts QR Codes Passwords Signatures

Open Generate →

Image & Files

tallyloom.com/image/

Resize, compress, and convert images — on your device, never uploaded.

Resize Compress Convert Color Palette Favicons Crop

Open Image →

Accessibility

tallyloom.com/accessibility/

WCAG contrast, color-blindness simulation, and readability — checked in your browser.

Contrast Checker Palette Matrix Color Blindness Readability PX to REM

Open A11y →

Education & Study

tallyloom.com/educate/

GPA, grades, percentages, and study tools that show every step of the math.

GPA Final Grade Percentages Flashcards Fractions Name Picker Citation Generator Study Timer Roman Numerals

Open Educate →

Health & Fitness

tallyloom.com/health/

BMI, calories, and running pace — informational calculators with their formulas shown.

BMI Calories / TDEE Running Pace Body Fat %Water Intake Heart-Rate Zones

Open Health →

Dev & Text Utilities

tallyloom.com/dev/

The daily-driver utilities: format, test, encode, count, and compare.

JSON Formatter Regex Tester Base64 Word Counter Case Converter Diff Checker Cron Expression Generator URL Encode Timestamps UUIDs Hashes JWT Decode Colors Lorem Ipsum HTML Encode Text Cleaner

Open Dev →

Featured tool

Invoice Generator

Build an itemized, professional invoice with tax and totals — then print or save it as a PDF, free.

Try it now

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Accurate by design

Every calculator shows its formula and assumptions, so you can check the math.

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Private by default

Tools run in your browser — what you type into a tool is processed on your device, not uploaded to Tallyloom. See our Privacy Policy for details.

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Always growing

New tools ship regularly. Ask for one and we'll build it.